Render preview looks different than material preview
Material preview uses a hidden HDRI image for a source of lighting and reflections. if you want to add one yourself, go to the shading tab, and change the box in the middle left from &quot;object&quot; to &quot;world. Then add an Environment Texture (Add &gt; Texture &gt; Environment Texture) to the graph (not an image texture) and select an HDRI for your image. The ones that come with blender are in the Blender Folder at .../2.93/datafiles/studiologhts/world (.exr files). You can also find them online for free in many places - one of the most popular is HDRI Haven (https://hdrihaven.com/hdris/)